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Finding the Fourth Proportional to 561,625.20, 842,437.80 and 349,048.80

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Solution

The fourth proportional to 561,625.20, 842,437.80 and 349,048.80 is: 523,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,625.20 : 842,437.80 = 349,048.80 : x
  2. Step 2: Convert to fraction form
    561,625.20/842,437.80 = 349,048.80/x
  3. Step 3: Cross multiply
    561,625.20x = 842,437.80 × 349,048.80
  4. Step 4: Simplify right side
    561,625.20x = 294,051,903,164.64
  5. Step 5: Solve for x
    x = 294,051,903,164.64/561,625.20
  6. Step 6: Final answer
    x = 523,573.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.